1 | package org.openstreetmap.josm.gui.layer;
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2 |
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3 | import java.awt.Graphics;
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4 | import java.awt.GridBagLayout;
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5 | import java.awt.event.ActionEvent;
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6 | import java.util.Collection;
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7 | import java.util.HashSet;
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8 | import java.util.Iterator;
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9 | import java.util.LinkedList;
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10 | import java.util.Set;
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11 | import java.util.Stack;
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12 |
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13 | import javax.swing.Icon;
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14 | import javax.swing.JLabel;
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15 | import javax.swing.JMenuItem;
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16 | import javax.swing.JOptionPane;
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17 | import javax.swing.JPanel;
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18 | import javax.swing.JPopupMenu;
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19 |
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20 | import org.openstreetmap.josm.Main;
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21 | import org.openstreetmap.josm.actions.GpxExportAction;
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22 | import org.openstreetmap.josm.actions.SaveAction;
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23 | import org.openstreetmap.josm.command.Command;
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24 | import org.openstreetmap.josm.data.osm.DataSet;
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25 | import org.openstreetmap.josm.data.osm.Segment;
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26 | import org.openstreetmap.josm.data.osm.Node;
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27 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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28 | import org.openstreetmap.josm.data.osm.Way;
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29 | import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
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30 | import org.openstreetmap.josm.data.osm.visitor.MergeVisitor;
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31 | import org.openstreetmap.josm.data.osm.visitor.SimplePaintVisitor;
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32 | import org.openstreetmap.josm.data.osm.visitor.Visitor;
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33 | import org.openstreetmap.josm.gui.MapView;
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34 | import org.openstreetmap.josm.gui.dialogs.ConflictDialog;
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35 | import org.openstreetmap.josm.gui.dialogs.LayerListPopup;
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36 | import org.openstreetmap.josm.tools.GBC;
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37 | import org.openstreetmap.josm.tools.ImageProvider;
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38 |
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39 | /**
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40 | * A layer holding data from a specific dataset.
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41 | * The data can be fully edited.
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42 | *
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43 | * @author imi
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44 | */
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45 | public class OsmDataLayer extends Layer {
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46 |
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47 | public final static class DataCountVisitor implements Visitor {
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48 | public final int[] normal = new int[3];
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49 | public final int[] deleted = new int[3];
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50 | public final String[] names = {"node", "segment", "way"};
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51 |
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52 | private void inc(OsmPrimitive osm, int i) {
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53 | normal[i]++;
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54 | if (osm.deleted)
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55 | deleted[i]++;
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56 | }
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57 |
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58 | public void visit(Node n) {
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59 | inc(n, 0);
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60 | }
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61 |
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62 | public void visit(Segment ls) {
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63 | inc(ls, 1);
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64 | }
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65 |
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66 | public void visit(Way w) {
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67 | inc(w, 2);
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68 | }
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69 | }
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70 |
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71 | public interface ModifiedChangedListener {
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72 | void modifiedChanged(boolean value, OsmDataLayer source);
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73 | }
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74 |
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75 | private static Icon icon;
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76 |
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77 | /**
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78 | * The data behind this layer.
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79 | */
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80 | public final DataSet data;
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81 |
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82 | /**
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83 | * Whether the data of this layer was modified during the session.
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84 | */
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85 | private boolean modified = false;
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86 | /**
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87 | * Whether the data was modified due an upload of the data to the server.
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88 | */
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89 | public boolean uploadedModified = false;
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90 | /**
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91 | * Whether the data (or pieces of the data) was loaded from disk rather than from
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92 | * the server directly. This affects the modified state.
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93 | */
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94 | private boolean fromDisk = false;
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95 | /**
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96 | * All commands that were made on the dataset.
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97 | */
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98 | private LinkedList<Command> commands = new LinkedList<Command>();
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99 | /**
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100 | * The stack for redoing commands
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101 | */
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102 | private Stack<Command> redoCommands = new Stack<Command>();
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103 |
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104 | /**
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105 | * List of all listeners for changes of modified flag.
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106 | */
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107 | LinkedList<ModifiedChangedListener> listener;
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108 |
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109 |
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110 | /**
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111 | * Construct a OsmDataLayer.
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112 | */
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113 | public OsmDataLayer(DataSet data, String name, boolean fromDisk) {
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114 | super(name);
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115 | this.data = data;
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116 | this.fromDisk = fromDisk;
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117 | }
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118 |
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119 | /**
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120 | * TODO: @return Return a dynamic drawn icon of the map data. The icon is
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121 | * updated by a background thread to not disturb the running programm.
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122 | */
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123 | @Override public Icon getIcon() {
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124 | if (icon == null)
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125 | icon = ImageProvider.get("layer", "osmdata");
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126 | return icon;
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127 | }
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128 |
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129 | /**
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130 | * Draw all primitives in this layer but do not draw modified ones (they
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131 | * are drawn by the edit layer).
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132 | * Draw nodes last to overlap the segments they belong to.
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133 | */
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134 | @Override public void paint(Graphics g, MapView mv) {
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135 | SimplePaintVisitor visitor = new SimplePaintVisitor(g, mv);
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136 | for (OsmPrimitive osm : data.segments)
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137 | if (!osm.deleted)
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138 | osm.visit(visitor);
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139 | for (OsmPrimitive osm : data.ways)
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140 | if (!osm.deleted)
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141 | osm.visit(visitor);
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142 | for (OsmPrimitive osm : data.nodes)
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143 | if (!osm.deleted)
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144 | osm.visit(visitor);
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145 | for (OsmPrimitive osm : data.getSelected())
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146 | if (!osm.deleted)
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147 | osm.visit(visitor);
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148 | Main.main.getMapFrame().conflictDialog.paintConflicts(g, mv);
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149 | }
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150 |
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151 | @Override public String getToolTipText() {
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152 | return undeletedSize(data.nodes)+" nodes, "+
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153 | undeletedSize(data.segments)+" segments, "+
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154 | undeletedSize(data.ways)+" streets.";
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155 | }
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156 |
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157 | @Override public void mergeFrom(Layer from) {
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158 | final MergeVisitor visitor = new MergeVisitor(data);
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159 | for (OsmPrimitive osm : ((OsmDataLayer)from).data.allPrimitives())
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160 | osm.visit(visitor);
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161 | visitor.fixReferences();
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162 | if (visitor.conflicts.isEmpty())
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163 | return;
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164 | ConflictDialog dlg = Main.main.getMapFrame().conflictDialog;
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165 | dlg.add(visitor.conflicts);
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166 | JOptionPane.showMessageDialog(Main.main, "There were conflicts during import.");
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167 | if (!dlg.isVisible())
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168 | dlg.action.actionPerformed(new ActionEvent(this, 0, ""));
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169 | }
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170 |
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171 | @Override public boolean isMergable(Layer other) {
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172 | return other instanceof OsmDataLayer;
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173 | }
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174 |
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175 | @Override public void visitBoundingBox(BoundingXYVisitor v) {
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176 | for (Node n : data.nodes)
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177 | v.visit(n);
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178 | }
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179 |
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180 | /**
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181 | * @return the last command added or <code>null</code> if no command in queue.
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182 | */
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183 | public Command lastCommand() {
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184 | return commands.isEmpty() ? null : commands.getLast();
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185 | }
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186 |
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187 | /**
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188 | * Execute the command and add it to the intern command queue. Also mark all
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189 | * primitives in the command as modified.
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190 | */
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191 | public void add(Command c) {
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192 | c.executeCommand();
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193 | commands.add(c);
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194 | redoCommands.clear();
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195 | // TODO: Replace with listener scheme
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196 | Main.main.undoAction.setEnabled(true);
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197 | Main.main.redoAction.setEnabled(false);
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198 | setModified(true);
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199 | }
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200 |
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201 | /**
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202 | * Undoes the last added command.
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203 | */
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204 | public void undo() {
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205 | if (commands.isEmpty())
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206 | return;
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207 | Command c = commands.removeLast();
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208 | c.undoCommand();
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209 | redoCommands.push(c);
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210 | //TODO: Replace with listener scheme
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211 | Main.main.undoAction.setEnabled(!commands.isEmpty());
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212 | Main.main.redoAction.setEnabled(true);
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213 | if (commands.isEmpty())
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214 | setModified(uploadedModified);
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215 | }
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216 | /**
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217 | * Redoes the last undoed command.
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218 | */
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219 | public void redo() {
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220 | if (redoCommands.isEmpty())
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221 | return;
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222 | Command c = redoCommands.pop();
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223 | c.executeCommand();
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224 | commands.add(c);
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225 | //TODO: Replace with listener scheme
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226 | Main.main.undoAction.setEnabled(true);
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227 | Main.main.redoAction.setEnabled(!redoCommands.isEmpty());
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228 | setModified(true);
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229 | }
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230 |
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231 | /**
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232 | * Clean out the data behind the layer. This means clearing the redo/undo lists,
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233 | * really deleting all deleted objects and reset the modified flags. This is done
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234 | * after a successfull upload.
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235 | *
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236 | * @param uploaded <code>true</code>, if the data was uploaded, false if saved to disk
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237 | * @param processed A list of all objects, that were actually uploaded.
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238 | * May be <code>null</code>, which means nothing has been uploaded but
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239 | * saved to disk instead.
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240 | */
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241 | public void cleanData(Collection<OsmPrimitive> processed, boolean dataAdded) {
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242 | redoCommands.clear();
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243 | commands.clear();
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244 |
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245 | // if uploaded, clean the modified flags as well
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246 | if (processed != null) {
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247 | Set<OsmPrimitive> processedSet = new HashSet<OsmPrimitive>(processed);
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248 | for (Iterator<Node> it = data.nodes.iterator(); it.hasNext();)
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249 | cleanIterator(it, processedSet);
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250 | for (Iterator<Segment> it = data.segments.iterator(); it.hasNext();)
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251 | cleanIterator(it, processedSet);
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252 | for (Iterator<Way> it = data.ways.iterator(); it.hasNext();)
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253 | cleanIterator(it, processedSet);
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254 | }
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255 |
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256 | // update the modified flag
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257 |
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258 | if (fromDisk && processed != null && !dataAdded)
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259 | return; // do nothing when uploading non-harmful changes.
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260 |
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261 | // modified if server changed the data (esp. the id).
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262 | uploadedModified = fromDisk && processed != null && dataAdded;
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263 | setModified(uploadedModified);
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264 | //TODO: Replace with listener scheme
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265 | Main.main.undoAction.setEnabled(false);
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266 | Main.main.redoAction.setEnabled(false);
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267 | }
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268 |
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269 | /**
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270 | * Clean the modified flag for the given iterator over a collection if it is in the
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271 | * list of processed entries.
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272 | *
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273 | * @param it The iterator to change the modified and remove the items if deleted.
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274 | * @param processed A list of all objects that have been successfully progressed.
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275 | * If the object in the iterator is not in the list, nothing will be changed on it.
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276 | */
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277 | private void cleanIterator(Iterator<? extends OsmPrimitive> it, Collection<OsmPrimitive> processed) {
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278 | OsmPrimitive osm = it.next();
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279 | if (!processed.remove(osm))
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280 | return;
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281 | osm.modified = false;
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282 | if (osm.deleted)
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283 | it.remove();
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284 | }
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285 |
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286 | public boolean isModified() {
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287 | return modified;
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288 | }
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289 |
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290 | public void setModified(boolean modified) {
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291 | if (modified == this.modified)
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292 | return;
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293 | this.modified = modified;
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294 | if (listener != null)
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295 | for (ModifiedChangedListener l : listener)
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296 | l.modifiedChanged(modified, this);
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297 | }
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298 |
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299 | /**
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300 | * Add the parameter to the intern list of listener for modified state.
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301 | * @param l Listener to add to the list. Must not be null.
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302 | */
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303 | public void addModifiedListener(ModifiedChangedListener l) {
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304 | if (listener == null)
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305 | listener = new LinkedList<ModifiedChangedListener>();
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306 | listener.add(l);
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307 | }
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308 |
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309 | /**
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310 | * @return The number of not-deleted primitives in the list.
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311 | */
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312 | private int undeletedSize(Collection<? extends OsmPrimitive> list) {
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313 | int size = 0;
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314 | for (OsmPrimitive osm : list)
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315 | if (!osm.deleted)
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316 | size++;
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317 | return size;
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318 | }
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319 |
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320 | @Override public Object getInfoComponent() {
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321 | DataCountVisitor counter = new DataCountVisitor();
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322 | for (OsmPrimitive osm : data.allPrimitives())
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323 | osm.visit(counter);
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324 | JPanel p = new JPanel(new GridBagLayout());
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325 | p.add(new JLabel(name+" consists of:"), GBC.eol());
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326 | for (int i = 0; i < counter.normal.length; ++i) {
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327 | String s = counter.normal[i]+" "+counter.names[i]+(counter.normal[i] != 1 ?"s":"");
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328 | if (counter.deleted[i] > 0)
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329 | s += " ("+counter.deleted[i]+" deleted)";
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330 | p.add(new JLabel(s, ImageProvider.get("data", counter.names[i]), JLabel.HORIZONTAL), GBC.eol().insets(15,0,0,0));
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331 | }
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332 | return p;
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333 | }
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334 |
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335 | @Override public void addMenuEntries(JPopupMenu menu) {
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336 | menu.add(new JMenuItem(new SaveAction()));
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337 | menu.add(new JMenuItem(new GpxExportAction(this)));
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338 | menu.addSeparator();
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339 | menu.add(new LayerListPopup.InfoAction(this));
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340 | }
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341 | }
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